Solarific

Solar panel data for all U.S. cities

Solar Panel Angles for Peoria, Illinois

The most efficient tilt for photovoltaic panels in Peoria, Illinois at a latitude of 40.75°:

Orientation

Your photovoltaic panels need to be angled facing south.

Fixed tilt

If you're mounting the photovoltaic panels at a stationary angle, such as on your roof, the most efficient angle is 34.1°.

2-Season tilt

If you're planning to change the angle of your photovoltaic panels twice per year, the most efficient angle is 16.9° in summer months and 54.9° in winter months.

4-Season tilt

If you're planning to change the angle of your photovoltaic panels each season, the most efficient angle is 13.2° in summer months and 60.3° in winter months, and 37.6° in autumn and spring months.